JPH0322301A - Lighting device - Google Patents

Abstract

PURPOSE:To freely obtain any luminous distribution between a wide range luminous distribution and a concentrated luminous distribution by a method wherein a pair of lighting units can be turned on a hinge so that the units make any angle roughly between zero and 180 degrees. CONSTITUTION:Two lighting units 7 are installed with their bottoms on the sides nearly at the ends of a pair of arms 9 which are protrudingly installed at the sides of a horizontal hinge 6, and sockets are installed at the bottoms to mount single-base fluorescent lamps. The inner faces of the shades 10 which cover single-base fluorescent lamps of the lighting units 7 serve as reflectors, and translucent openings of the shades 10 are covered with translucent covers 11. The lighting units 7 are set on a vertical hinge 5 free to rotate in the plane which is vertical to the plane of installation, and can be set at any angle while they can freely be set with the horizontal hinge 6 at any position between a parallel position and a semi-straight position. Thus, any luminance distribution can be obtained at need.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to lighting equipment, and particularly to the structure of the lighting equipment. [Prior Art] Conventionally, as shown in FIG. 12, a lighting fixture 7 using a straight fluorescent lamp as a light source is attached via a hinge to the upper end of a support 3 projecting from the lighting fixture body 2 so as to obtain a wide range of light distribution. Light fixtures 7 equipped with stand-type lighting fixtures made of 300 liters, and single-cap fluorescent lamps with arc tubes folded into four to create a street light source, as shown in Figure 13.
A pillar 3 protrudes from a lighting fixture body 2 provided on a base 1.
Stand-type lighting fixtures are well known, which are installed with a hinge at the top end to obtain concentrated light distribution. [Problem to be solved by the invention] However, when a stand type lighting fixture as shown in Fig. 12 is used and concentrated light distribution becomes necessary, or when a stand type lighting equipment as shown in Fig. 13 is used, If you are using a lighting device that requires a wide range of light distribution, the only way to change the light distribution is to replace the lighting equipment itself; if replacement is not possible, you may have to settle for an insufficient light distribution. The problem was that I had no choice but to do so. Also, some chandeliers are known that allow the direction of the light stem to be changed up or down to change between direct and indirect lighting. There was nothing that allowed you to change it arbitrarily.

The present invention has been made in view of the above-mentioned background, and an object of the present invention is to provide a lighting fixture that can obtain arbitrary light distribution as required. (Means for Solving the Problems) A lighting fixture according to the present invention includes a lighting fixture equipped with a single-cap fluorescent lamp attached to a lighting fixture body in which a lighting device is installed, and at least one pair of lighting fixtures being brought close to each other at one longitudinal end. The one end is attached to the lighting fixture body via a hinge, and the pair of lighting fixtures is freely movable by the hinge between a state in which they are substantially in a straight line with each other and a state in which they are substantially parallel to each other and in close contact with each other. .

The lighting fixture may also be a stand-type lighting fixture in which a pair of lamps are attached via a hinge to the tip of a support that projects from the lighting fixture body.

In addition, this lighting fixture can also be made to be able to rotate around its longitudinal central axis. Furthermore, in this lighting fixture, the lighting of pairs of lamps can be individually controlled.

[action] According to the present invention, the pair of lamps can be arbitrarily moved between a state in which they are in a substantially straight line with each other and a state in which they are in close contact with each other in a substantially parallel manner by means of the hinges to which they are attached. By changing the positional relationship of the lamps, it is possible to freely obtain any desired light distribution, from a wide range of light distribution when the lamps are in the same position, to concentrated light distribution when they are closely spaced in parallel to each other. 〔Example〕

1 to 11 show one embodiment of the present invention, which will be explained below based on the drawings. This embodiment is a stand-type lighting fixture, and as shown in Figures 1 to 3, it has a substantially disc-shaped base 1 that is placed on an installation surface such as a desk top to stabilize the installation. A lighting fixture main body 2 having an approximately cylindrical external shape and housing an electronic lighting device therein is attached to the top surface. Above the lighting fixture body 2, a support 3 is attached to a support hinge 4.
Two lamps 7 are disposed at the upper end of the column 3 via a vertical hinge 5 and a horizontal hinge 6.

The base 1 is approximately disk-shaped, and the upper surface of the weight made of steel plate is covered with a plastic cover to ensure stable installation.The base 1 and the lighting fixture body 2 are separated from each other during packaging. When in use, they are fixed together with screws. The lighting fixture main body 2 has a support hinge 4 integrated at its upper end and an electronic lighting device housed therein, and when a power cord is introduced and connected to the electronic lighting device, the support hinge 4 is integrated.
Through this, a lead wire is led out from the electronic lighting device to a socket for mounting a single-cap fluorescent lamp installed in the lamp 7. Furthermore, two switches 8 are provided on the top surface of the lighting fixture main body 2 to individually control the lighting of the single-cap fluorescent lamps installed in the two lighting fixtures 7.

The two lamps 7 are attached at their bases to the sides near the tips of a pair of arms 9 protruding from the side of the horizontal hinge 6, and the bases are equipped with sockets for mounting single-cap fluorescent lamps. ing. The inner surface of the shade 10 covering the single-cap fluorescent lamp of the lamp 7 also serves as a reflecting plate, and the light-transmitting opening of the shade 10 is covered with a light-transmitting cover 11. The light fixtures 7 are rotatable in a plane perpendicular to the installation surface by vertical hinges 5, and can change the tilt angle as desired, while horizontal hinges 6 allow them to be arranged parallel to each other, as shown in FIG. It is possible to freely set the arrangement between substantially straight lines. Furthermore, as shown in FIGS. 5 and 6, the lamp 7 is rotatable around the longitudinal center axis of the lamp 7, so that only the downward direction of direct illumination is variable. It can also be used as indirect lighting by irradiating upwards.

In this lighting fixture, as shown in FIG.
By moving the light beams about the horizontal hinge 6 and arranging them in a substantially straight line, it is possible to obtain a wide range of light distribution as in the conventional lighting fixture shown in FIG. 12. Further, as shown in FIG. 8, by arranging two lamps 7 in parallel and close together, it is possible to obtain concentrated light distribution like the conventional lighting device shown in FIG. Furthermore, as shown in FIG. 9, if the two lamps 7 are arranged at an angle between straight and parallel, it is possible to obtain a light distribution intermediate between a wide range light distribution and a concentrated light distribution. Furthermore, as shown in Figure 10, if the lamp 7 is rotated around its longitudinal central axis and directed inward, the light will be concentrated inward, making it easier to see the illuminated object l2 with less shadows. Can be done. Furthermore, as shown in FIG. 11, the light fixture 7 on the right side is turned around its longitudinal center axis so that the transparent cover 11 faces leftward to turn off the light, and the light fixture 7 on the left side is turned on. By doing so, you can block the light to the right side. Although the above embodiment is a desk stand, it may be used not only for other stand-type lighting equipment such as a floor stand, but also for other lighting equipment such as a hanging lighting equipment, a direct-mounted lighting equipment, or a chandelier. Further, the lamp 7 may be directly attached to the lighting apparatus main body 2 by a horizontal hinge 6, or the horizontal hinge 6 may be provided for each lamp 7. Furthermore, the number of lamps is not limited to two, and a plurality of pairs of two lamps may be provided. [Effects of the Invention] Since the present invention is constructed as described above, it achieves the following effects. In the lighting fixture of claim (1), arbitrary light distribution can be achieved by changing the positional relationship of the lamps, from a wide range of light distribution in a state where they are substantially in a straight line to each other, to a concentrated light distribution in a state where they are substantially parallel to each other and in close contact with each other. It can be changed. The lighting fixture of claim (2) can be used not only for variable light distribution in direct lighting but also as indirect lighting. In the lighting fixture of claim (3), each lighting fixture can be individually controlled to perform more detailed light distribution control. Claim (4
) can easily provide the necessary light distribution.

[Brief explanation of drawings]

1 to 11 show an embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. 4 is a movable side view of the lamp. Figures 5 and 6 are front views of the main parts showing the rotational state of the lamp about the longitudinal central axis in use, and Figures 7 to 9 similarly show the arrangement of the lamp. Main part plan, 1st
Figure 0 is a perspective view of the main part showing the state of the lamp, and Figure 1l is a front view of the main part. FIG. 12 is a front view showing a conventional example, and FIG. 13 is a side view showing a different conventional example. Shade, 11...Transparent cover

Claims (4)

[Claims] (1) In a lighting fixture in which a lighting fixture equipped with a single-cap fluorescent lamp is attached to a lighting fixture body in which a lighting device is installed, at least a pair of lighting fixtures are brought close to each other at one longitudinal end, and the lighting is provided via a hinge at one end. 1. A lighting device, which is attached to a main body of the device, and wherein the pair of lighting devices can be freely moved by the hinge between a state in which they are substantially in a straight line with each other and a state in which they are substantially parallel to each other and in close contact with each other. (2) The lighting fixture according to claim (1), wherein the lighting fixture is rotatable around its longitudinal central axis. (3) The lighting fixture according to claim (1) or (2), wherein the lighting fixtures that are paired with each other are individually controlled to light up. (4) Claims (1), (2), or (2) characterized in that the pair of light fixtures are stand-type lighting fixtures attached via hinges to the tips of pillars protruding from the lighting fixture body.
3) The lighting equipment described.